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Deprecate window creation with stale event loop

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Creating window when event loop is not running generally doesn't work,
since a bunch of events and sync OS requests can't be processed. This
is also an issue on e.g. Android, since window can't be created outside
event loop easily.

Thus deprecate the window creation when event loop is not running,
as well as other resource creation to running event loop.

Given that all the examples use the bad pattern of creating the window
when event loop is not running and also most example existence is
questionable, since they show single thing and the majority of their
code is window/event loop initialization, they wore merged into
a single example 'window.rs' example that showcases very simple
application using winit.

Fixes #3399.
This commit is contained in:
Kirill Chibisov 2024-01-31 17:29:59 +04:00
parent 19190a95a0
commit 3fb93b4f83
90 changed files with 1594 additions and 3495 deletions
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25
src/platform_impl/ios/event_loop.rs
View file

@ -20,8 +20,7 @@ use crate::{
error::EventLoopError,
event::Event,
event_loop::{
ControlFlow, DeviceEvents, EventLoopClosed,
EventLoopWindowTarget as RootEventLoopWindowTarget,
ActiveEventLoop as RootActiveEventLoop, ControlFlow, DeviceEvents, EventLoopClosed,
},
platform::ios::Idiom,
platform_impl::platform::app_state::{EventLoopHandler, HandlePendingUserEvents},
@ -34,11 +33,11 @@ use super::{
};
#[derive(Debug)]
pub struct EventLoopWindowTarget {
pub struct ActiveEventLoop {
pub(super) mtm: MainThreadMarker,
}
impl EventLoopWindowTarget {
impl ActiveEventLoop {
pub fn available_monitors(&self) -> VecDeque<MonitorHandle> {
monitor::uiscreens(self.mtm)
}
@ -109,9 +108,9 @@ impl OwnedDisplayHandle {
}
fn map_user_event<T: 'static>(
mut handler: impl FnMut(Event<T>, &RootEventLoopWindowTarget),
mut handler: impl FnMut(Event<T>, &RootActiveEventLoop),
receiver: mpsc::Receiver<T>,
) -> impl FnMut(Event<HandlePendingUserEvents>, &RootEventLoopWindowTarget) {
) -> impl FnMut(Event<HandlePendingUserEvents>, &RootActiveEventLoop) {
move |event, window_target| match event.map_nonuser_event() {
Ok(event) => (handler)(event, window_target),
Err(_) => {
@ -126,7 +125,7 @@ pub struct EventLoop<T: 'static> {
mtm: MainThreadMarker,
sender: Sender<T>,
receiver: Receiver<T>,
window_target: RootEventLoopWindowTarget,
window_target: RootActiveEventLoop,
}
#[derive(Default, Debug, Copy, Clone, PartialEq, Eq, Hash)]
@ -158,8 +157,8 @@ impl<T: 'static> EventLoop<T> {
mtm,
sender,
receiver,
window_target: RootEventLoopWindowTarget {
p: EventLoopWindowTarget { mtm },
window_target: RootActiveEventLoop {
p: ActiveEventLoop { mtm },
_marker: PhantomData,
},
})
@ -167,7 +166,7 @@ impl<T: 'static> EventLoop<T> {
pub fn run<F>(self, handler: F) -> !
where
F: FnMut(Event<T>, &RootEventLoopWindowTarget),
F: FnMut(Event<T>, &RootActiveEventLoop),
{
let application = UIApplication::shared(self.mtm);
assert!(
@ -181,8 +180,8 @@ impl<T: 'static> EventLoop<T> {
let handler = unsafe {
std::mem::transmute::<
Box<dyn FnMut(Event<HandlePendingUserEvents>, &RootEventLoopWindowTarget)>,
Box<dyn FnMut(Event<HandlePendingUserEvents>, &RootEventLoopWindowTarget)>,
Box<dyn FnMut(Event<HandlePendingUserEvents>, &RootActiveEventLoop)>,
Box<dyn FnMut(Event<HandlePendingUserEvents>, &RootActiveEventLoop)>,
>(Box::new(handler))
};
@ -211,7 +210,7 @@ impl<T: 'static> EventLoop<T> {
EventLoopProxy::new(self.sender.clone())
}
pub fn window_target(&self) -> &RootEventLoopWindowTarget {
pub fn window_target(&self) -> &RootActiveEventLoop {
&self.window_target
}
}